v6.6.4

• #19

v6.6.3

• #18

v6.6.2

• Fixed support for high-density screens #17

v6.6.1

• Fix/updating hover frame on mouseout #16

v6.6.0

• custom tooltip #15

v6.5.0

• Add heatBars mode, add color options #13

v6.4.0

• Allow colorHash  function to be overridden #12

v6.3.2

• Add space between "on stack:" and percentage #10
• Fix tooltip position when zoomed using +/- buttons #11

v6.3.1

• Fix crash when no data was recorded #9

v6.3.0

• Node Zoom API #7
• Resize canvas and rerender after width() or height() calls #8